Not Generating Address for Testnet

[RohitSingh107]

I am trying to use library with testnet but it always generate address for mainnet. Here is my code:

use bip47::PublicCode;
use bip47::PrivateCode;
use bip47::bitcoin::Network;

fn main() {
    let alice_seed = String::from("Here I had my secret seed");
    // Alice constructs her own payment code using a BIP32 seed
    let alice_private = PrivateCode::from_seed(&alice_seed.as_bytes(), 0, Network::Testnet).unwrap();


    println!("Alice Public code: {}", alice_private.v2_public_code());

    // let bob_public = PublicCode::from_wif("PM8TJS2JxQ5ztXUpBBRnpTbcUXbUHy2T1abfrb3KkAAtMEGNbey4oumH7Hc578WgQJhPjBxteQ5GHHToTYHE3A1w6p7tU6KSoFmWBVbFGjKPisZDbP97").unwrap();
    let bob_public = PublicCode::from_wif("PM8TJPb3pgoZ5Gxs1kzYkkLQoHnnwHMvwP87SEeteG8F1eCx8PBVi8Zpf9wo44SJAFSLWyiXpXSw3y9SMKzaHpQFgEixJwZpP2zUAHsZhEf3ZS3JFymB").unwrap();

    // Alice parses Bob's payment code
    println!("Boc's Public payment code: {:?}", bob_public.to_string());

    // Alice calculates Bob's receive address at index 0, known only to them
    let bob_address_0 = bob_public.address(&alice_private, 0, false).unwrap();

    // Alice can now pay Bob privately
    println!("Bob's Private Payment code: {}", bob_address_0.to_string());
}